菌体溶酶-MOFs纳米材料用于治疗尖端牙周炎
Manhong Kuong1, Haiping Wang2, Feifei Han2
1State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China.
概括
一种新型纳米酶,LysPd138@ZIF-8,有效地消灭Enterococcus Faecalis (E. faecalis) 并促进骨愈合. 这一突破为耐火性尖端牙周炎提供了有前途的治疗方法,改善了患者的治疗结果.
科学领域:
- 生物材料科学 生物材料科学
- 微生物学 微生物学
- 牙周内科医院 牙周内科医院 牙周内科医院
背景情况:
- 菌 (Enterococcus Faecalis) (E. faecalis) 是阻断性牙牙周炎 (RAP) 的主要原因,导致持续的炎症和不良愈合.
- 传统的治疗方法难以根除E. faecalis,需要创新的治疗方法.
研究的目的:
- 开发和评估一种新型纳米酶LysPd138@ZIF-8,用于治疗E. faecalis诱导的耐火性顶端牙周炎.
- 评估纳米酶的抗菌疗效,生物相容性,骨质生成潜力和体内治疗效果.
主要方法:
- 合成ZIF-8框架,封装一种细菌菌素溶,这种溶是特定于E. faecalis. 的.
- 在体外抗菌试验,生物膜抑制试验和骨质分化试验 (ALP,ARS,qPCR).
- 形牙周炎的ex vivo牙模型和in vivo小鼠模型用于有效性评估 (CT成像,组织学分析).
主要成果:
- LysPd138@ZIF-8 显示出强有力的,针对性的抗菌活性对抗 E. faecalis,包括生物膜.
- 这种纳米酶促进了骨质母细胞的骨质基因分化,并调节了相关基因.
- 在体内研究表明有效的E. faecalis清除,减少骨吸收,并抑制周围炎症.
结论:
- LysPd138@ZIF-8是一种生物相容的纳米酶,具有显著的抗菌和骨质生成性.
- 这种新型治疗药物在治疗耐火性顶牙牙周炎方面显示出很大的前景.
- 这一发现表明了对具有挑战性的内牙感染进行增强的临床治疗的新策略.
相关概念视频
01:30Lytic Cycle of Bacteriophages
70.5K
Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
70.5K
00:43Lysogenic Cycle of Bacteriophages
62.0K
In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
62.0K